In signing an executive order aimed at reducing U.S. drug prices, President Donald Trump said some prices would be cut in half or more "almost immediately." But the order is light on details of how the plan would be implemented.

If prescription savings are to be passed on to Americans not on Medicare, Congress likely would have to pass a law to enact any price reductions.

More than 100 days into President Donald Trump’s second term, the administration has fallen into a pattern. Trump releases an executive order with an expansive title accompanied by even more expansive claims from the president and senior officials about the effects of the directive.